Year	metric tons
1961	24729602
1962	26633196
1963	26743867
1964	27188779
1965	26407223
1966	25843922
1967	29033209
1968	26792864
1969	30128516
1970	28602397
1971	29138485
1972	30336025
1973	28630758
1974	31694729
1975	32105740
1976	34952002
1977	32915410
1978	33992403
1979	32964570
1980	36268817
1981	37450990
1982	33215689
1983	35276580
1984	30820505
1985	35726157
1986	37539927
1987	34629150
1988	43874948
1989	36734470
1990	37025510.05
1991	43772475.68
1992	43357654.8
1993	45896567.62
1994	45183167.599999994
1995	42997671.940000005
1996	46370786.31
1997	43816951.98
1998	49308981.18
1999	45979111.72
2000	41231543.11
2001	50034254.24
2002	50034557.3
2003	57142250.25
2004	50561051.39
2005	61947960.730000004
2006	64981855.370000005
2007	65189157.06
2008	64324466.2
2009	73345292.96000001
2010	78023637.91
2011	77068866.53
2012	84584116.66999999
2013	86463925.55
2014	90337732.25
2015	86516051.09
2016	91431501.27000001
2017	91076023.29
2018	94681995.14
2019	99620694.49000001
2020	102768587.32
2021	98598037.01
2022	101518919.14000002